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37:47
The best of Neil deGrasse Tyson: Aliens, UFOs, asteroids & more
16.9K views1 week ago
YouTubeCNN
1:58
Alien Trailer HD (Original 1979 Ridley Scott Film) Sigourney
3M viewsMay 22, 2012
YouTubeRotten Tomatoes Trailers
31:31
Secrets Etched in Time | Ancient Aliens
201.4K views5 days ago
YouTubeHISTORY
44:43
Sacred & Inexplicable Places | Ancient Aliens
198.8K views4 days ago
YouTubeHISTORY
4:14
Brian Cox Visits ‘Alien’ Living in ‘Death Trap’ Cave | BBC Earth Science
70.6K views1 week ago
YouTubeBBC Earth Science
43:16
Cosmic Secrets of Monoliths (S9, E13) | Ancient Aliens: The Ultimate Evidence | Full
42.1K views3 days ago
YouTubeHISTORY
7:36
The Rise & Fall of ET Species | Ancient Aliens
20.6K views1 week ago
YouTubeHISTORY
0:34
Alien - Official 45th Anniversary Trailer (1979) Sigourney Weaver, Tom Skerritt
297.4K viewsApr 16, 2024
YouTubeIGN
2:02
Alien: Romulus | Official Trailer
13.3M viewsJun 4, 2024
YouTube20th Century Studios
35:56
Nobody Expected This to Show Up ONLINE❗😲 - Aliens, UFO, Why Files, Joe Rogan,
64.7K views1 day ago
YouTubeSKizzle
1:03
Alien: Romulus | Teaser Trailer
22.3M viewsMar 20, 2024
YouTube20th Century Studios
2:48
Alien: Romulus | Final Trailer
7.8M viewsJul 18, 2024
YouTube20th Century Studios
2:42
Alien (1979) - Ripley's Last Stand Scene (5/5) | Movieclips
2.5M viewsMay 16, 2015
YouTubeMovieclips
43:52
ALIEN: The Documentary! (2025)
562.7K viewsDec 15, 2024
YouTubeThe Popcast Brothers
1:01:02
Man Shot at a UFO, Then Filmed Its Shocking Landing! The Footage Is Unbelievable!
42.6K views2 days ago
YouTube50M Videos
1:18:32
The NEW Complete Alien Timeline (1979 - 2025)
178.7K views7 months ago
YouTubeNerdist
23:09
The Deadliest Alien Encounters Ever Filmed | Sci-Fi Action Compilation | Sci-Fi Station
2.4K views1 week ago
YouTubeScience Fiction Station
0:57
Testing The Unknown: Alien Contact | UFOs Over Earth | Discovery Channel India
2.3K views3 days ago
YouTubeDiscoveryChannelInd
0:56
Testing The Unknown: Alien Contact | UFO's Over Earth | Discovery Channel India
1.1K views2 days ago
YouTubeDiscoveryChannelInd
29:01
NASA's $40 BILLION Plan To Image Alien Worlds
173.4K views3 days ago
YouTubeAstroKobi
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